CVE-2021-46279

Session Fixation and Insufficient Session Expiration

5.8 Medium

Session fixation and insufficient session expiration vulnerabilities allow an attacker to perfom session hijacking attacks against users. This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: High
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: Low

Exploit likelihood

0.50%Down 0.4 points since Oct 25, 2022

What each source reports

CVE List Score used 5.8

Session Fixation and Insufficient Session Expiration

Record: CVE-2021-46279
CVSS 3.1: 5.8 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:L
Weakness: CWE-384, CWE-613
Updated: 2026-11-02

EUVDEUVD-2021-32971 5.8

Record: EUVD-2021-32971
CVSS 3.1: 5.8 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:L
Updated: 2026-11-02

GitHub AdvisoriesGHSA-vr2w-6jc9-59fh 9.8

Session fixation and insufficient session expiration vulnerabilities allow an attacker to perfom...

Record: GHSA-vr2w-6jc9-59fh
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-613
Updated: 2026-11-02

NVD 5.8

Record: CVE-2021-46279
CVSS 3.1: 5.8 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:L
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness: CWE-384, CWE-613
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-46279 is a medium vulnerability (CVSS 5.8) in Lanner Inc Iac-ast2500a, published October 24, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.50%, the 42nd percentile. No source names a fixed version.